﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo
{
    class Father
    {
        public string  Name { get; set; }

        public Father()
        {
        }

        public Father(string name)
        {
            Name = name;
        }
        public virtual string   Xingwei()
        {
            return null;
        }

    }
}
